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Method for monitoring seismic events

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    0340079 - GFÚ 2010 US eng P - Patent Document
    Jechumtálová, Zuzana - Eisner, L.
    Method for monitoring seismic events.
    Alexandria: United States Patent and Trademark Office, 2010. Owner: Schlumberger. Date of the patent registration: 14.07.2008. Date of the patent acceptance: 12.01.2010. Patent Number: US 7,647,183 B2
    Institutional research plan: CEZ:AV0Z30120515
    Keywords : microseismic monitoring * hydrocarbon wells * signal recordings
    Subject RIV: DC - Siesmology, Volcanology, Earth Structure

    A microseismic method of monitoring fracturing operation or other microseismic events in hydrocarbon wells is described using the steps of obtaining multi-component signal recordings from a single monitoring well in the vicinity of a fracture or event; and rotating observed signals such that they become independent of at least one component of the moment tensor representing the source mechanism and performing an inversion of the rotated signals to determine the remaining components.
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